Folder, portfolio, filing or mailing envelope, and similar container



N. OTTINGER June 13, 1933.

FOLDER, PORTFOLIO, FILING 0R MAILING ENVELOPE, AND SIMILAR CONTAINER Filed Dec.

I /W im M Patented June 13, 1933 warren stares NATHAN O'rTIneER, OF' NEw Y RK, N.

FOLDER, PORTFOLIO, FILING OR MAILING ENVELOPE,-. Ann SIMILAR CONTAINER mpplication filed December 10, 1931. Serial NO. 580,033;

This invention relates to folders, portfolios, filing or mailing envelopes and similar containers, the general object and purpose of the present invention being to provide certain improvements in an article of this kind, as more particularly disclosed in my issued Patent 1,861,974, dated June 7, 1932, whereby the said folder or container, while possessing all the practical advantages referred to in my patented construction, may be roduced at very low manufacturing cost.

t is a more particular object of the invention to provide such a folder formed from a single blank sheet of paper or other inexpensive flexible material, so that it may be used as a file case or mailing envelope'at negligible cost, andwhich, when closed, will securely hold the-contents against possible loss and, without the use "of additional or extraneous fastening means, will not, though roughly or abusively handled, accidentally Open up so that the papers or other contents would be released therefrom. V

In attaining the above purpose, in a practical embodiment of the invention, the folder or case is produced from a single paper blank having parts relatively positioned to provide a side wall having a retaining pocket opening across said side wall and at one end thereof, and closure parts for the openside and end of said pocket integral with said side wall, and each of said parts having folded portions adapted to be interlocked with each other to securely retain said parts in their pocket closing positions. Also, for the purpose of greater security, I provide the folded portions of the closure for the open side of the pocket with an integral liap or extension adapted to extend into the pocketandupon the contents thereof.

l/Vith the above and other objects in view, the invention consists in the improved folder,-

. portfolio or-othcr analogous container posthroughout the several views,

tive arrangements of its several parts, as will be hereinafter more fully described, illustrated in the accompanying drawing and subsequently incorporated in the subjoined claims. 3 i I In the drawing wherein I have disclosed one simple and practical embodiment of the invention, and in which similar reference characters designate corresponding parts Figure 1' is a plan View of the blank of paperor other fiexible'material from which the folder isformedg- I i v 1Fig. 2 is a similar view showing certain parts of the blankarra-nged in permanently connected relationto form a retaining pocket, and other partsthereofhavingfolded portions and constituting the pocket closing means; Fig. 3 is a plan view showing the folder or container closed, and a Fig. 4 is a sectional view on an enlarged sFcale' taken substantially on the line 4-4: of

lg. 3. r a I Referring more particularly to Fig. 1 of the drawing, as therein shown, they entire folder or container is, produced from a single blank ioflpaper or other flexible material of suitable weight which is cutto provide the rectangular body wall 5, constituting one side of the article receiving pocket as will more fully hereinafter appear. The parts or sections 6 and 7 respectively extending integrally from opposite longitudinal edges of the body Wall 5, areadapted to be folded relative thereto along the broken lines indicated at 8 and 9 respectively. The section 6 has an obliquely extending free longitudinal edge 10 and at itsouter end is adapted to be adhesively secured and permanently connected to the narrow flap 11 on one end of the body wall 5, which is folded-inwardly upon one sideof said. wall along the broken line indicated at12.' v f f" 1 The other section 7' is of general rectangular form, preferably having one corner thereof at its free end rounded as shown at 18. An intermediate portion 14 of this section 7 is adapted to be folded upon one side thereof along the broken lines 15 and 16, the line 15 extending obliquely from the opposite corner of the section 7 with respect to the rounded edge 13 thereof to a point 15, which is spaced on the end edge of the section 7 from the point of juncture of the edges 9 and 12 of the body wall 5. The other fold line 16 converges with respect to the line 15 towards the point 15, and terminates on the end edge of the section 7 in spaced relation to said point, as indicated at 16. It will thus be understood that when the portion '14 is folded on the section 7 along the lines 15 and 16, there will be provided a free relatively flexing flap portion 7 projecting outwardly from the inner edge 16 of the portion 14 beyond the outer oblique edge 15 thereof, said flap including the rounded edge 13, while the end edge of thisflap at its juncture with the fold 16 is located inwardly of and in laterally spaced relation from the adjacent end edge of the section 7.

The body wall 5 opposite the end thereof provided with the flap 11 has an integral part or section 17 of substantially triangular shaped form foldable with respect to said body wall along the broken line 18. Along one of the side edges of this part 17 and foldable with respect thereto along the line 19, the narrow tongue or flap 20 is provided. This flap is'closely folded inwardly upon the part 17 on the side thereof corresponding with the side of the body wall 5, to which the article retaining wall 6 of the pocket is secured.

Assuming that the several parts of the blank have been relatively folded and positioned, as seen in Fig. 2 of the drawing, in using the device, the papers or other articles are inserted through the open side and end of the pocket between body wall 5 and the retaining wall. 6. The section 7 is then folded upwardly and inwardly to extend over the papers protrudin from the open side of the pocket, and the flap 7 is relatively flexed and inserted beneath the obliquely inclined edge 10 of the pocket wall 6 and upon-the papers or other contents within said pocket. This insertion of the flap 7 is facilitated by reason of the fact that said flap does not extend to the juncture point of the edge 10 of the pocket wall with the edge 9 of the body wall 5, so that said flap may be easily manipulated and quickly moved to position beneath the wall 6, without binding or buckling. When the section 7 is so positioned, itwill be obvious from reference to Fig. 3 of the drawing, that the folded portion 14 thereof between the fold lines 15 and 16 extends beyond the oblique edge 10 of thepocket wall 6 and overlaps upon the outer surface of said wall.

The end closure section 17 is now folded inwardly upon the section 7, and the tongue or flap 20 of the section 17 is relatively flexed so that it will freely slide between the part 14 and the outer surface of the pocket wall 6 under the obliquely inclined edge 15, and thus be securely interlocked with said overlapping fold 14 of the section 7, which closes the open side of the pocket. in this manner, it will. be apparent that the open side and end of the article retaining pocket are veryeifectively-and securely closed. By the provision of the flap 7 and fold 14, with which the interlocking tongue on the end closure 17 coacts, relative opening movement between the section 7 and 1'? is strongly resisted, the degree of such resistance progressively increasing as the bulk of the contents which may be inserted into the pocket of the fold is increased. By actual test, it has been demonstrated that a folder of this construction containing a large number of papers may be very roughly or abusively handled without danger of the release of the closure sections from their interlocked relation, and the release of the contents of the folder. Therefore, such a folder which may be very inex ensively manufactured from paper of suitable weight, may be advantageously used at very small expense not or y as an 'oi'lice filing requisite, but also as mailing envelope for distributing circ other advertising matter through the mails, since no additional or extraneous fastening means or the use of guinor adhesive in order to maintain a secure closure is requirer. Of course, it is alsoapparent that the article may be manufactured in a high grade leather or other more expensive flexible in ter la in form of brief case or portfolio, referred to in my issued patent.

From the foregoing description considered in connection with the foregoing drawing, it is believed that the construction. manner of use and the. several advantages o my present in'iprovements will he cle. .y and fully understood. It will be seen that l have n1aterially simplified and reduced the manufacturing cost of. the folder or portfolio as dis closed in my issued patent, and have at th same time retained all of the advantages thereof. Of course, is ev' ,nt that the folder may be produced in a greas'; variety of sizes and of various grades of paper or other flexible material, depending upon the particular purposes for which e article isto be used. Also, while I have herein shown and described a simple and practical embodiment of my present improvements, it nevertheless to be understood that the s ne may also incorporated inyarious other structural forms, and .l accordingly reserve the privilege of resorting to all such legitimate changes in the form, construction and relative arrangement of the several detail parts as may be fairly incorporated within the scope of the subjoined claims.

I claim:

1. container of flexible material having a body Wall and a wall extending over a part of one side of said body wall and in conjunction therewith forming a retaining pocket, said latter Wall having a free edgeextending across said body Wall, a closure means for the container pocket including a part movably connected to the body wall along one edge thereof adapted to overlie the remaining area of said body Wall when in closed position, and having a folded portion providing a double thickness of material extending beyond the free edge of said second named wall. and upon the outer surface thereof, and an end closure for the pocket movably connected with another edge of said body wall foldable into superposed relation upon the part closing the open side of the pocket, and having means for releasable interlocking engagement with the folded portion of said first named closure part.

2. A container of flexible material having a body wall and a wall extending over a part of one side of said body wall and in conjunction therewith forming a retaining pocket,

' said latter wall having a free edge extending across said body wall, a closure means for the container pocket includinga part movably connected to the body wall along one edge thereof adapted to overlie the remaining area of said body wall when in closed position, and having a folded portion providing a double thickness of material extending beyond thefree edge of said second named wall and upon the outer surface thereof, said folded portion having a relatively flexing flap extension connected with the inner, edge thereof and projecting beyond the outer edge of the fold for insertion into the retaining pocket, and an end closure for the pocket movably connected with anotheredge of said body wall foldable into superposed relation upon the part closing the open side of the pocket, and having means for releasable interlocking engagement with the folded portion of said first named closure part.

3. A container of flexible material having a body wall and a wall extending over a part of one side of said body wall and secured to the latter to form a retaining pocket in conjunction therewith, said second named wall having a free edge extending across said body wall at an open side of the pocket, and a closure member of flexible material movably connected to the body wall along one edge thereof adapted to overlie the remaining area of said body wall when in closed position, said member having a folded portion provided with a relatively flexing flap extension for insertion into the retaining pocket, and

said closure member and the folded portion thereof projecting beyond the freeredge of said second {named wall in overlapping. engagement upon the outer surface thereof.

4. A container formed from a single blank of flexiblematerialland comprising a body wall and a wall extending overa part of one sideofsaid body wall and secured thereto to form in conjunction with the lattera ret'aining pocket,said second named ;wall having a free; edge extending across said body wall at the open'sid'e of the pocket, said body Wall having an integral extension flexibly con 5. A container formed from a single blank of flexible materialiand comprising a body Wall and a wall extending over a part of one side of said body wall and secured thereto to form in conjunction with the latter a retaining pocket, said second named wall having a free edge extending across said body wall at the open side of the pocket, said body wall having an integral extension flexibly connected along one edge of said body wall to constitute a closure for the open side of the pocket, said extensionhaving a folded portion and a relatively flexing flap projecting outwardly from the inner edge thereof beyond the fold, said'flap being adapted for insertion into the retaining pocket, said fold and closure projecting over the free edge of said second named wall in superposed engagement upon' the outer surface thereof to retain said closure extension in its pocket closing position, and said body wall also having an integral extension flexibly connected with an end edge thereof adapted to be folded over and upon said first named closure extension and provided with a relatively flexing part for interlocking engagement with the folded portion of said closure extension.

6. A. container of flexible material having a body wall and a wall extending over a part of one side of said body wall and connected therewith to form a retaining pocket, said latter wall having a free edge extending across said body Wall, a closure means for said pocket comprising a part movably connected to the body wall along one longitudinal edge thereof and adapted to overlie another portion of the body wall when in closed position, said movable part having a folded portion thereof receiving said free edge of said pocket wall and providing a multiply thickness of material superimposed upon the outer surface of the pocket Wall, and an end closure for the pocket movably connected With one end edge of said body wall, fold able into superimposed relation upon the part closing the open side of the pocket, and having means for releasable interlocking engagement with the fold of said latter closure art. p In testimony that I claim the foregoing as my invention, Ihave signed my name hereto.

- NATHAN OTTINGER. 

